| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Flags: --allow-natives-syntax --expose-externalize-string |
| |
| // Test JSON.stringify on the global object. |
| var a = 12345; |
| assertTrue(JSON.stringify(this).indexOf('"a":12345') > 0); |
| assertTrue(JSON.stringify(this, null, 0).indexOf('"a":12345') > 0); |
| |
| // Test JSON.stringify of array in dictionary mode. |
| function TestStringify(expected, input) { |
| assertEquals(expected, JSON.stringify(input)); |
| assertEquals(expected, JSON.stringify(input, (key, value) => value)); |
| assertEquals(JSON.stringify(input, null, "="), |
| JSON.stringify(input, (key, value) => value, "=")); |
| } |
| |
| var array_1 = []; |
| var array_2 = []; |
| array_1[1<<17] = 1; |
| array_2[1<<17] = function() { return 1; }; |
| var nulls = "null,"; |
| for (var i = 0; i < 17; i++) { |
| nulls += nulls; |
| } |
| |
| expected_1 = '[' + nulls + '1]'; |
| expected_2 = '[' + nulls + 'null]'; |
| TestStringify(expected_1, array_1); |
| TestStringify(expected_2, array_2); |
| |
| // Test JSPrimitiveWrapper with custom prototype. |
| var num_wrapper = Object(42); |
| num_wrapper.__proto__ = { __proto__: null, |
| toString: function() { return true; } }; |
| TestStringify('1', num_wrapper); |
| |
| var str_wrapper = Object('2'); |
| str_wrapper.__proto__ = { __proto__: null, |
| toString: function() { return true; } }; |
| TestStringify('"true"', str_wrapper); |
| |
| var bool_wrapper = Object(false); |
| bool_wrapper.__proto__ = { __proto__: null, |
| toString: function() { return true; } }; |
| // Note that toString function is not evaluated here! |
| TestStringify('false', bool_wrapper); |
| |
| // Test getters. |
| var counter = 0; |
| var getter_obj = { get getter() { |
| counter++; |
| return 123; |
| } }; |
| TestStringify('{"getter":123}', getter_obj); |
| assertEquals(4, counter); |
| |
| // Test toJSON function. |
| var tojson_obj = { toJSON: function() { |
| counter++; |
| return [1, 2]; |
| }, |
| a: 1}; |
| TestStringify('[1,2]', tojson_obj); |
| assertEquals(8, counter); |
| |
| // Test that we don't recursively look for the toJSON function. |
| var tojson_proto_obj = { a: 'fail' }; |
| tojson_proto_obj.__proto__ = { toJSON: function() { |
| counter++; |
| return tojson_obj; |
| } }; |
| TestStringify('{"a":1}', tojson_proto_obj); |
| |
| // Test toJSON produced by a getter. |
| var tojson_via_getter = { get toJSON() { |
| return function(x) { |
| counter++; |
| return 321; |
| }; |
| }, |
| a: 1 }; |
| TestStringify('321', tojson_via_getter); |
| |
| assertThrows(function() { |
| JSON.stringify({ get toJSON() { throw "error"; } }); |
| }); |
| |
| // Test toJSON with key. |
| tojson_obj = { toJSON: function(key) { return key + key; } }; |
| var tojson_with_key_1 = { a: tojson_obj, b: tojson_obj }; |
| TestStringify('{"a":"aa","b":"bb"}', tojson_with_key_1); |
| var tojson_with_key_2 = [ tojson_obj, tojson_obj ]; |
| TestStringify('["00","11"]', tojson_with_key_2); |
| |
| // Test toJSON with exception. |
| var tojson_ex = { toJSON: function(key) { throw "123" } }; |
| assertThrows(function() { JSON.stringify(tojson_ex); }); |
| assertThrows(function() { JSON.stringify(tojson_ex, null, 0); }); |
| |
| // Test toJSON with access to this. |
| var obj = { toJSON: function(key) { return this.a + key; }, a: "x" }; |
| TestStringify('{"y":"xy"}', {y: obj}); |
| |
| // Test holes in arrays. |
| var fast_smi = [1, 2, 3, 4]; |
| fast_smi.__proto__ = [7, 7, 7, 7]; |
| delete fast_smi[2]; |
| assertTrue(%HasSmiElements(fast_smi)); |
| TestStringify("[1,2,7,4]", fast_smi); |
| |
| var fast_double = [1.1, 2, 3, 4]; |
| fast_double.__proto__ = [7, 7, 7, 7]; |
| |
| delete fast_double[2]; |
| assertTrue(%HasDoubleElements(fast_double)); |
| TestStringify("[1.1,2,7,4]", fast_double); |
| |
| var fast_obj = [1, 2, {}, {}]; |
| fast_obj.__proto__ = [7, 7, 7, 7]; |
| |
| delete fast_obj[2]; |
| assertTrue(%HasObjectElements(fast_obj)); |
| TestStringify("[1,2,7,{}]", fast_obj); |
| |
| var getter_side_effect = { a: 1, |
| get b() { |
| delete this.a; |
| delete this.c; |
| this.e = 5; |
| return 2; |
| }, |
| c: 3, |
| d: 4 }; |
| assertEquals('{"a":1,"b":2,"d":4}', JSON.stringify(getter_side_effect)); |
| assertEquals('{"b":2,"d":4,"e":5}', JSON.stringify(getter_side_effect)); |
| |
| getter_side_effect = { a: 1, |
| get b() { |
| delete this.a; |
| delete this.c; |
| this.e = 5; |
| return 2; |
| }, |
| c: 3, |
| d: 4 }; |
| assertEquals('{"a":1,"b":2,"d":4}', |
| JSON.stringify(getter_side_effect, null, 0)); |
| assertEquals('{"b":2,"d":4,"e":5}', |
| JSON.stringify(getter_side_effect, null, 0)); |
| |
| var non_enum = {}; |
| non_enum.a = 1; |
| Object.defineProperty(non_enum, "b", { value: 2, enumerable: false }); |
| non_enum.c = 3; |
| TestStringify('{"a":1,"c":3}', non_enum); |
| |
| var str = "external"; |
| try { |
| externalizeString(str, true); |
| } catch (e) { } |
| TestStringify("\"external\"", str, null, 0); |
| |
| var o = {}; |
| o.somespecialproperty = 10; |
| o["\x19"] = 10; |
| assertThrows("JSON.parse('{\"somespecialproperty\":100, \"\x19\":10}')"); |
